Measuring the enthalpy change of vaporisation of water You should attempt this part of the activity even if you have not seen the demonstration of the practical. 1. Calculate a value for ∆Hvap for water in KJ mol-1 using the data from the demonstration. Also‚ calculate ∆Hvap from the following data gathered by a student; 8100 J were needed to distil 2.95g of water. a) Explain why the boiling tube was surrounded with expanded polystyrene (or other similar insulation)‚ but the condenser was left
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Title Page: Module Code: FC 511 2T Module Title: Skills for study Tutor Name: Emma Duffy Assessment title: Formative Lab Report: Enthalpy of Combustion of Butanol Student ID Number: 201233920 Date of submission: 6/3/2017 Past tense recapping what you did in the experiment Present tense explain theory and compare theory THINGS TO IMPROVE : Reference Introduction Discussion Avoid Plagiarism Table of Contents Introduction P.3 Aim Materials
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Khadn Adderley Grade 11R Laws of Life Essay Question: With persistence and time‚ we can overcome any problem. Problems are something that people face in everyday life‚ no matter the time or place. To every problem there is an occurring solution. Persistence is the fact of continuing in an opinion or course of action in spite of difficulty or opposition. It is said by Colin Powell that‚ “Success is the result of perfection‚ hard work‚ learning from failure‚ loyalty‚ and persistence.” Though normal
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8.04 Law’s and Trials of the 1920’s 1. After reading about the subject‚ define the word "Prohibition" as it pertains to the 18th amendment. Prohibition in the United States was a measure designed to reduce drinking by eliminating the businesses that manufactured‚ distributed‚ and sold alcoholic beverages. The Eighteenth Amendment to the U.S. Constitution took away license to do business from the brewers‚ distillers‚ vintners‚ and the wholesale and retail sellers of alcoholic beverages. 2
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Christian E. Foster Civil Procedure Section 1 Chapter 2 Summary In order for the judicial system to operate‚ the court must have the ability to exercise its power over citizens within the confines of law. To do this‚ a court exerts jurisdiction over individuals‚ allowing it to enter binding judgements in suits that arise due to contact in the jurisdiction. There are three types of jurisdiction exercised by state courts: In Personam‚ In Rem‚ and Quasi In Rem. In Personam jurisdiction is jurisdiction
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typically bring about rotary motion. The Laws of Motion form the foundation of dynamics. First Law of Motion An object will remain at rest or continue to move at a constant velocity unless acted upon by an external force. F = net force If F = 0 ⇒ v = constant Third Law of Motion For every action there is an equal but opposite reaction. These two forces (action & reaction) act on different bodies. Freaction Faction = − Freaction Faction Second Law of Motion When a net external force acts on
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Assessment: Determining the Enthalpy Change of a Displacement Reaction AIM: To determine the enthalpy change for the reaction between copper(II) sulfate and zinc. BACKGROUND THEORY: Bond breaking is endothermic while bond forming is exothermic. The reaction between copper(ll) sulfate and zinc is exothermic as the energy required to form the bonds of the products is greater than the energy required to break the bonds of the reactants. In an exothermic reaction‚ heat is given off to the surroundings;
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Vapor Pressure and Enthalpy of Vaporization of Water 1/9/12 Emily Toy Lab Partner: Zack Ronnei Instructor: Ms. Olsen‚ AP Chemistry Purpose: The purpose of this lab is to find the vapor pressure of water at temperatures between 50oC and 80oC. Procedure: 1. Take a10 mL graduated cylinder and fill it with 7 mL of water. 2. Next fill a 1000 mL beaker ¾ full with water. 3. Cover the graduated cylinder by putting your finger on top and place the cylinder in the 1000 mL beaker. Make
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“Law of Interaction” Law of Interaction “For every action‚ there is an equal and opposite reaction” The statement means that in every interaction‚ there is a pair of forces acting on the two interacting objects. The size of the forces on the first object equals the size of the force on the second object. Interaction between the hammer and nail A hammer exerts a force on the nail and drives it into a board . But this is not the only force present for there must also be a force exerted on
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I am going to investigate the enthalpy change of combustion for the alcohol homologous series. I will investigate how alcohols with increasing number of carbons affect the enthalpy change when an alcohol goes under combustion. The energy that alcohols release when being used is called the enthalpy change of combustion. This is defined as "Standard enthalpy change of combustion‚ is the enthalpy change when one mole of a substance burns completely in oxygen under standard conditions (298K‚ 100 KPa
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